"A comprehensive review of firefly algorithms" can be a good reference. Also, I attached some links that may help you more. These papers are about improvement of firefly algorithm and it application on real world problems.
Thanks Soheila Ghambari..I still new in optimization and algorithm..but i'm trying to collaborate FFA with Supply Chain Management in Engineering Field..currently i want to merge the parameter of SCM with FFA concept..thank you for the link..very appreciate.